This is the only way they can be redeemed. You cannot redeem gift cards in the Roblox mobile app or on your console. Log in to your Roblox account (or create one if you don't have one already).

You should see a message saying you've successfully had the credit applied to your account. But for those who have trouble and appear to have a one or zero in their gift card code, be aware that you ...

Gift card codes are strictly case-sensitive, hence users are advised to double check them before hitting the redeem button. The card won't be activated if you enter the wrong code in the text box.